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-rw-r--r--tools/include/uapi/linux/prctl.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h
index 43bd7f713c39..de45fcd2dcbe 100644
--- a/tools/include/uapi/linux/prctl.h
+++ b/tools/include/uapi/linux/prctl.h
@@ -235,7 +235,7 @@ struct prctl_mm_map {
#define PR_GET_TAGGED_ADDR_CTRL 56
# define PR_TAGGED_ADDR_ENABLE (1UL << 0)
/* MTE tag check fault modes */
-# define PR_MTE_TCF_NONE 0
+# define PR_MTE_TCF_NONE 0UL
# define PR_MTE_TCF_SYNC (1UL << 1)
# define PR_MTE_TCF_ASYNC (1UL << 2)
# define PR_MTE_TCF_MASK (PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC)